Question #098cc

1 Answer
Doc048
Jun 20, 2017

V_"eq" = 16.7 ml of 0.15M HCl

Explanation:

NaOH + HCl => NaCl + H_2O has a 1 to 1 reaction ratio. This means that the moles of NaOH neutralized equals the moles of HCl added at the equivalence point ( or, end point ).

=> moles NaOH = moles HCl
=> (MolarityxxVolume)_"NaOH" = (MolarityxxVolume)^ "HCl"
=> (25 ml)(0.10M NaOH) = V(HCl) x (0.15M HCl)
=> V(HCl) = [(23 ml)(0.10M)]/ [0.15M] = 16.7 ml

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